package cn.itcast.bos.web.action.base;

import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import javax.persistence.criteria.CriteriaBuilder;
import javax.persistence.criteria.CriteriaQuery;
import javax.persistence.criteria.Predicate;
import javax.persistence.criteria.Root;
import org.apache.commons.lang3.StringUtils;
import org.apache.poi.hssf.usermodel.HSSFSheet;
import org.apache.poi.hssf.usermodel.HSSFWorkbook;
import org.apache.poi.ss.usermodel.Row;
import org.apache.struts2.convention.annotation.Action;
import org.apache.struts2.convention.annotation.Namespace;
import org.apache.struts2.convention.annotation.ParentPackage;
import org.apache.struts2.convention.annotation.Result;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.Scope;
import org.springframework.data.domain.Page;
import org.springframework.data.domain.PageRequest;
import org.springframework.data.domain.Pageable;
import org.springframework.data.jpa.domain.Specification;
import org.springframework.stereotype.Controller;
import com.opensymphony.xwork2.ActionContext;
import com.opensymphony.xwork2.ActionSupport;
import com.opensymphony.xwork2.ModelDriven;
import cn.itcast.bos.domain.base.Area;
import cn.itcast.bos.service.base.AreaService;
import cn.itcast.bos.utils.PinYin4jUtils;
import cn.itcast.bos.web.action.common.BaseAction;

/**
 * 区域访问的action类
 * 
 * @author 张立
 * @version 1.0 2017-9-5 16:22:45
 */
@ParentPackage("json-default")
@Namespace("/")
@Controller
@Scope("prototype")
public class AreaAction extends BaseAction<Area>{

	// 注入Service对象
	@Autowired
	private AreaService areaService;
	// 接收上传文件
	private File file;
	
	public void setFile(File file) {
		this.file = file;
	}
	@Action(value="area_batchImport")
	public String batchImport() throws FileNotFoundException, IOException{
		List<Area> areas = new ArrayList<Area>();
		// 编写解析代码逻辑，基于.xls文件去解析hssf
		// 1.加载excel文件对象
		HSSFWorkbook hssfWorkbook = new HSSFWorkbook(new FileInputStream(file));
		// 读取一个sheet
		HSSFSheet sheet = hssfWorkbook.getSheetAt(0);
		// 读取sheet中的每一行
		for (Row row : sheet) {
			// 一行数据对应一个区域对象
			if(row.getRowNum()== 0){
				// 第一行跳过
				continue;
			}
			//  跳过空行
			if(row.getCell(0)== null || StringUtils.isBlank(row.getCell(0).getStringCellValue())){
				continue;
			}
			Area area = new Area();
			area.setId(row.getCell(0).getStringCellValue());
			area.setProvince(row.getCell(1).getStringCellValue());
			area.setCity(row.getCell(2).getStringCellValue());
			area.setDistrict(row.getCell(3).getStringCellValue());
			area.setPostcode(row.getCell(4).getStringCellValue());
			// 基于pinyin4j生成编码和解码
			String province = area.getProvince();
			String city = area.getCity();
			String district = area.getDistrict();
			province.substring(0, province.length()-1);
			city.subSequence(0, city.length()-1);
			district.subSequence(0, district.length()-1);
			// 简码
			String[] headArray = PinYin4jUtils.getHeadByString(province+city+district);
			StringBuffer buffer = new StringBuffer();
			for (String headStr : headArray) {
				buffer.append(headStr);
			}
			String shortcode = buffer.toString();
			area.setShortcode(shortcode);
			// 城市编码
			String citycode = PinYin4jUtils.hanziToPinyin(city,"");
			area.setCitycode(citycode);		
			areas.add(area);
		}
		// 调用业务层
		areaService.saveBatch(areas);
		return NONE;
	}
	
	@Action(value="area_pageQuery",results={@Result(name="success",type="json")})
	public String pageQuery(){
		// 构造分页查询对象
		Pageable pageable = new PageRequest(page-1,rows);
		// 构造条件查询对象
		Specification<Area> specification = new Specification<Area>(){
			@Override
			public Predicate toPredicate(Root<Area> root, CriteriaQuery<?> query, CriteriaBuilder cb) {
				// 创建保存条件集合对象
				List<Predicate> list = new ArrayList<Predicate>();
				
				// 添加条件
				if(StringUtils.isNotBlank(model.getProvince())){
					// 根据省份模糊查询
					Predicate p1 = cb.like(root.get("province").as(String.class),"%"+model.getProvince()+"%");
					list.add(p1);
				}
				if(StringUtils.isNotBlank(model.getCity())){
					// 根据城市模糊查询
					Predicate p2 = cb.like(root.get("city").as(String.class),"%"+model.getCity()+"%");
					list.add(p2);
				}
				if(StringUtils.isNotBlank(model.getDistrict())){
					// 根据城市模糊查询
					Predicate p3 = cb.like(root.get("district").as(String.class),"%"+model.getDistrict()+"%");
					list.add(p3);
				}
				
		return cb.and(list.toArray(new Predicate[0]));
			}
		
};
	// 调用业务层，完成查询
		Page<Area> pageData = areaService.findPageData(specification,pageable);
		
		// 压入值栈
		pushPageDataToValueStack(pageData);
		return SUCCESS;
}
}
